I've been carb cycling for the past 2 weeks. Since the last 3 days, I ate perhaps 40 grams of carbs per day. As I was doing legs wednesday, I started to have a terrible throbbing headache in the back of my head. I thought this was perhaps linked with the low position of my head (I was leg pressing) or dehydration.
So thursday I was training back. After my first set of pull-ups, the same kind of headache came back even more powerfully. I changed my exercice selection for less "challenging" ones and I was able to made it through. I then made sure to drink plenty of water.
Then today I went to do chest/delts. Warming up with the 75s on the dumbell press and that same headache comes in even more powerfuly.
*On all those days:
-I drank a large coffee before my workout.
-I had less then 40 g of carbs (preworkout)
What should I do to get rid of those headaches? What's their cause?
Thank you and have a good day